A clash over President Trump’s “nuclear football” almost caused an international incident in November when a Chinese security official was tackled to the ground during a chaotic scene in Beijing, it was revealed Sunday.

The alarming incident took place after a US military aide carrying the briefcase with which the president can launch a nuclear strike was prevented from following Trump into the Great Hall by Chinese security, according to Axios.

Another US official quickly went to inform Chief of Staff John Kelly who rushed to the military aide and announced, “We’re moving in.”

When Kelly and company proceeded, a Chinese security official grabbed Kelly who shoved the man’s hand away. The Chinese official was then tackled by a Secret Service, according to the report.

The fracas was instantly quelled, and Chinese security officials eventually apologized, Axios said.